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/. Mar. biol. Ass. India, 1961, 3 (1 & 2): 101-119 ON DECAPODA BRACHYURA FROM THE ANDAMAN AND NICOBAR ISLANDS 1. FAMILIES PORTUNIDAE, OCYPODIDAE, GRAPSIDAE AND MICTYRIDAE.* By C. SANKARANKUTTY Central Marine Fisheries Research Institute INTRODUCTION THE present paper begins a series on the brachyuran fauna of the Andaman and Nicobar Islands, and describes 29 species and a variety collected during February to March 1960 from (1) Localities around Port Blair, viz. Bimbletan, South Point, Corbins Cove, Aberdeen Bay, Phoenix Bay, North Bay and Kalapahad ; (2) Neil! Island ; (3) Car Nicobar ; (4) Maya Bandar ; (5) Long Island ; and (6) Nan- cauri. Of these reported in this account, 8 species and 1 variety are recorded for the first time from this region. Heller (1868) recorded 27 species of crabs belonging to the three famiUes Por- tunidae, Ocypodidae, and Grapsidae. Alcock (1899 & 1900) in his ' Materials for a Carcinological Fauna of India' described 35 species of portunids, 13 species of ocypodids and 24 species of grapsoids from the Andaman and Nicobar Islands, apart from Mictyris longicarpus Latreille. Later de Man (1908-09) reported Sesarma thelxionae de Man ; Kemp (1919) Macrophthalmus pacificus Dana (=M. bicari- natus Heller) and Dotilla wichmanni de Man and Chopra (1931) Lissocarcinus ornatus Chopra from the same region. The collections were made mainly from the coral reefs and the intertidal region, vast areas of which get exposed during the ebb tide. A number of specimens were collected from the submerged reef with the help of a mask and snorkel. Portunids were mainly collected with a small dredge operated at 10 metres in the Aberdeen Bay, Port Blair. In this paper only those works dealing with the fauna of Indian region and a few of the outstanding works are referred to. The following is the list of species described in this paper. The asterisk mark denotes new record for the Andaman and Nicobar Islands. ° Published with the kind permission of the Director, Central Marine Fisheries Research Institute, Mandapam Camp. 102 C. SANKARANKUTTY Family PORTUNIDAE 1. Portunus sanguinolentus (Forskal). 2. P. granulatus (Milne Edwards). *3. P. pelagicus (Linnaeus) *4. P. minutus (Shen). *5. P. emarginatus Stephenson & Campbell. 6. Scylla serrata (Forskal). 7. Thalamita crenata (latreille). 8. T. prymna (Herbst). 9. T. chaptali (Audouin & Savigny). 10. T. admete (Herbst). 11. T. integra hana. *12. Charybdis (Goniohellenus) truncata (Fabr.). Family GRAPSIDAE 13. Grapsus albolineatus Lamarck. *14. Metopograpsus frontalis Miers. *15. Pachygrapsus minutus Milne Edwards. *16. P. planifrons de Man. *17. Ptychognathus dentatus de Man. 18. Sesarma (Chiromantes) bidens (De Haan). 19. Metaplax distincta Milne Edwards. *20. Plagusia depressa var. immaculata Lamarck. 21. Percnon planissimum (Herbst). Family OCYPODIDAE 22. Ocypoda ceratophthalma (Pallas). 23. O. cordimana Desm. 24. Uca marionis excisa Nobili. 25. U. annulipes (Latreille). 26. Dotilla mictyroides (Milne Edwards). 27. D. wichmanni de Man. 28. Macrophthalmus convexus Stimpson. 29. Macrophthalmus telescopicus (Owen), Family MICTYRIDAE 30. Mictyris longicarpus Latreille. Family PORTUNIDAE Portunus minutus (Shen) Neptunus {Lupocycloporus) minutus, Shen, 1937, p. 115. Portunus minutus, Stephenson and Campbell, 1959, p. 89. Material: One female 10 mm. broad and 6 mm. long. Locality : Dredged from Aberdeen Bay. ON DECAPODA BRACHYURA FROM THE ANDAMAN AND NICOBAR ISLANDS 103 Remarks : The ventral distal part of the merus of the cheliped has a spinule, the carpus carries three longitudinal ridges, the outer ridge joins the outer spine while the inner bifurcates in the middle and its inner branch joins the inner spine, the outer branch runs straight to the distal end of the joint. Distribution : Singapore (Shen). This is the first record of the species from Andaman and Nicobar Islands, Portunus emarginatus Stephenson and Campbell Portunus emarginatus, Stephenson and Campbell, 1959, p. 107. Material: Twelve males and seven females. The smallest ovigerous female 12 mm. broad. Locality : Dredged from Aberdeen Bay. Remarks : The specimens agree in all respects with the description given by Stephenson and Campbell except that they possess in addition a spinule at the distal end on the ventral side of the merus of the cheliped. Distribution: Darnley Island, Queensland (Stephenson and Campbell); This is the first record of the species outside Australia. Portunus sanguinolentus (Forskal) Neptunus sanguinolentus. Heller, 1868, p. 26. Alcock, 1899, p. 32. Chopra, 1935, p. 475. Pillai, 1951, p. 21. Neptunus (Neptunus) sanguinolentus, Laurie, 1906, p. 412. Chhapghar, 1957, p. 417. Portunus sanguinolentus, Stephenson and Campbell, 1959, p. 98. Material: Two specimens, one male and one female. Locality : North Bay, Caught in stake nets. Remarks: Even in the live condition the three characteristic blood red blot­ ches on the posterior region of the carapace were faint. Distribution : Nicobar (Heller) ; east and west coast of Indian Peninsula (Alcock); Travancore (Pillai) ; Bombay (Chhapghar). Outside India the species is known from East Africa to Hawaii. Portunus pelagicus (Linnaeus) Neptunus pelagicus, Alcock, 1899, p. 34. Gravely, 1927, p. 142. PiUai, 1951, p. 21. 104 C. SANKARANKUTTY Neptums (Neptmus) pelagicus, Laurie, 1906, p. 412. Chopra, 1935, p. 476. Chhapghar, 1957, p. 418. Portmus pelagicus, Stephenson and Campbell, 1959, p. 96. Material: One male specimen 44 mm. long and 102 mm. broad. Locality : North Bay ; caught in stake nets. Distribution : Coasts of India (Alcock); Gulf of Mannar (Gravely) ; Travan- core (Pillai); Bombay (Chhapghar). The species is known from East Africa to Japan and Philippines. Portunus granulatus (Milne Edwards) Neptunus (Achelous) granulatus,klcock, 1899, p. 45. Borradaile, 1903, p. 208. Laurie, 1906, p. 416. Portunus granulatus, Stephenson and Campbell, 1959, p. 108. Material: One male, one female and a juvenile, the former 18 mm. long and 27 mm. broad. Locality: Male specimen from Car Nicobar, others dredged from Aberdeen Bay. Remarks : In the juvenile specimen the anteroexternal angle of merus of the external maxilliped is less pronounced. Distribution: Andaman, Nicobar Islands, Malabar Coast (Alcock). The species is known from Red Sea, Mauritius, up to Hawaii and Fiji. Scylla serrata (Forskal) Scylla serrata. Heller, 1868, p. 27. Alcock, 1899, p. 27. Leene, 1938, p. 14. Pillai, 1951, p. 21. Chhapghar, 1957, p. 416. Stephenson and Campbell, 1960, p. Ill, Material: A male 51 mm. long and 75 mm. broad and a juvenile 13 mm. long and 19.5 mm. broad. Locality .* The large specimen was caught in a stake net in North Bay and the juvenile from Ross Island. ON DECAPODA BRACHYURA FROM THE ANDAMAN AND NICOBAR ISLANDS 105 Remarks : The frontal lobes in the juvenile are low. Distribution : Very extensive in the Indo-Paciflc region ; from East Africa and Red Sea to Japan, Tahiti and New Zealand (Chhapghar). Thalamita integra Dana Thalamita integra, Henderson, 1893, p. 373. Alcock, 1899, p. 85. Laurie, 1906, p. 420. Stephenson and Hudson, 1957, p. 339. Material: A single male 11.5 mm. long and 18 mm. broad. Locality : Dredged from Aberdeen Bay. Distribution : Andamans (Alcock); Rameswaram, Tuticorin (Henderson); Gulf of Mannar off Ceylon (Laurie). Outside India the species is known from East Africa and Red Sea to Fiji. FIG. 1. First male pleopods of (A) Mictyris longicarpus; (B) Macrophthalmus convexus ; (C) Sesarma {Chiromantes) bidens ; ^D) Dotilla wichmanni; (E) Metaplax distincta ; (F) Thala­ mita adit^te. 106 C. SANKARANKUTTY Thalamita admete (Herbst) Thalamita admete. Heller, 1868, p. 28. Stephenson and Hudson, 1957, p. 320. Thalamita admeta, Alcock, 1899, p. 82. Laurie, 1906, p. 420. Thalamita admeta, var. A. admeta, Borradaile, 1903, p. 202. var. B. edwardsi,Bonai6aS\e, 1903, p. 202. var. C. savignyi, Borradaile, 1903, p. 202. var. edwardsi. Gravely, 1927, p. 142. Material: Five ovigerous females, four non-ovigerous females and four males. The smallest ovigerous female is 7 mm. long and 11 mm. broad. Locality : Car Nicobar and Aberdeen Bay (Dredge collection). Remarks : Compared to the description given by Stephenson and Hudson, the number of bristles on the first male pleopod is small, obviously this is a variable character. Distribution : Andamans, Palk Straits (Alcock); Xrusadai Island in Gulf of Mannar (Gravely). Outside India the species is known from East Africa, Red Sea to Japan, Hawaii and Fiji (Stephenson and Hudson). Thalamita chaptali (Audomin and Savigny) Thalmita chaptali, Alcock, 1899, p. 80. Laurie, 1906, p. 419. Stephenson and Hudson, 1957, p. 327. Material: An ovigerous female 5.5 mm. long and 8 mm. broad and three males. Locality : Dredged from Aberdeen Bay. Remarks : The ventral distal end of the merus of the cheliped carried a spinule. Distribution : Andamans (Alcock); outside India the species is known from Red Sea, Gulf of Siam and Australia (Stephenson and Hudson). Thalamita crenata (Latreille) Thalamita crenata. Heller, 1868, p. 29. Alcock, 1899, p. 76. Kemp, 1915, p. 249. Gravely, 1927, p. 142. Chhapghar, 1957, p. 423, Stephenson and Hudson, 1957, p. 332. ON DECAPODA BRACHYURA FROM THE ANDAMAN AND NICOBAR ISLANDS 107 Thalamita prymna var. crenata, Laurie, 1906, 418. Material: One female and a male, the male measures 17 mm. in length and 25 mm. in breadth. Locality: Dredged from Aberdeen Bay. Distribution : Nicobar (Heller); Andamans, Bombay (Alcock) ; Chilka Lake (Kemp), Gulf of Mannar—Krusadai Island (Gravely) ; Bombay (Chhapghar). The species
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    Notes on the Macro-benthos of Kenyan mangroves. Item Type Report Authors Vannini, M.; Cannicci, S. Publisher Museum of Zoology, “La Specola”, University of Florence Download date 28/09/2021 16:56:48 Link to Item http://hdl.handle.net/1834/7903 NOTES ON THE MACRO-BENTHOS OF KENYAN MANGROVES by- Marco Vannini1 & Stefano Cannicci2 The notes were made for a post-graduate course in “Tropical coast ecology, management and conservation”, organised by Free University of Brussels and University of Nairobi, hosted at Kenya Marine and Fisheries Research Institute, with a support by IOC (Gazi, Mombasa, Kenya, July 1997). Acknowledgements. Many thanks are due to both Maddalena Giuggioli and Gianna Innocenti for their helping in preparing these notes and to Renyson K. Ruwa for his many suggestions during our field work. Most of the pictures (the beautiful ones !) are due to Riccardo Innocenti. Special thanks are due to Dr. E. Okemwa (KMFRI Director) for providing us many facilities during our work in Kenya. Our roads and Kenyan mangroves would probably never have met if one of these roads had not one day crossed Philip’s road. For those who have some experience of Kenya coastal ecology, Philip obviously cannot be anybody but Philip Polk, magnanimous spirit and, incidentally, Professor of Ecology at the Free University of Brussels. MANGROVE TREES Mangroves is the general name for several species (belonging to different families) of trees (including a palm tree) able to grow in an environment with 2.0-3.8 % of salinity. Mangrove is also the name for the whole trees association ; in this latter case the term mangal can also be used (as well as in Portuguese and French).
  • The Crustaceans Fauna from Natuna Islands (Indonesia) Using Three Different Sampling Methods

    The Crustaceans Fauna from Natuna Islands (Indonesia) Using Three Different Sampling Methods

    BIODIVERSITAS ISSN: 1412-033X Volume 21, Number 3, March 2020 E-ISSN: 2085-4722 Pages: 1215-1226 DOI: 10.13057/biodiv/d210349 Short communication: The crustaceans fauna from Natuna Islands (Indonesia) using three different sampling methods RIANTA PRATIWI1,, DEWI ELFIDASARI2, 1Research Centre for Oceanografi, Indonesian Institute of Sciences. Jl. Pasir Putih 1, Ancol Timur, Jakarta Utara 14330, Jakarta, Indonesia. Tel.: +62-21-64713850, Fax.: +62-21-64711948, email: [email protected] or [email protected] 2Department of Biology, Faculty of Sciences and Technology, Universitas Al-Azhar Indonesia Jl. Sisingamangaraja Kebayoran Baru, South Jakarta 12110, Jakarta, Indonesia. Tel./fax.: +62-21-72792753, email: [email protected] Manuscript received: 21 November 2019. Revision accepted: 25 February 2020. Abstract. Pratiwi R, Elfidasari D. 2020. Short communication: The crustaceans fauna from Natuna Islands (Indonesia) using three different sampling methods. Biodiversitas 21: 1215-1226. Research on crustacean fauna has been carried out in Natuna waters. Natuna is the outer islands of Indonesia which is still very abundant in fisheries resources including crustaceans. Unfortunately, research on crustaceans is rarely carried out there, especially on the islands around Natuna. Therefore research and information about fisheries, especially crustaceans are needed. The study was conducted on 12-29 April 2011 and sampling locations around the Bunguran Islands, Sedanu, Kognang, Batang, and Sebangmawang. The sampling collection was focused on three different sampling methods, namely: bottom trawling, transects, and free collection. The purpose of this study is to find out which method is best used in crustacean fauna research and it is expected that the crustacean data obtained can add information about crustacean fauna found in the Natuna Islands.